* {
    margin: 0;
    padding: 0;
}

body {
    height: 200vh;
}

.bg {
    position: relative;
    background: url(../allImages/冲浪板少女.png);
    background-size: cover;
    background-position: 80% 80%;
    height: 200vh;
    font-size: 500px;
    font-weight: 900;
    text-align: center;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    overflow: hidden;
    padding-top: 100px;
}

.bg::before {
    content: "";
    background-image: inherit;
    background-size: cover;
    background-position: 80% 80%;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    z-index: -1;
}

/* 欢迎来到发飞哦前端世界 */
h1 {
    position: absolute;
    top: 145vh;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    color: #fff;
    letter-spacing: 10px;
    padding: 100px 0;
    text-align: center;
    background-color: rgba(0, 0, 0, .5);
}